Guitar tab string numbers

[Phil Burfitt]

Hello List,

How can I define the string numbers of the notes of a chord in guitar TAB 
without the string numbers appearing in the standard notation?

ie.  string numbers for tab notation can be defined b\3 or <b>\3 and string 
numbers for tab and standard notation can be defined <b\3> but when I need 
to define string numbers in a chord <g\4 b\3> for tab but NOT standard 
notation, is there a way without resorting to \override StringNumber 
#'transparent = ##t

Regards,
Phil.